Question

a concert venue sold 100 tickets on the first day. each subsequent day, the number of tickets sold increases by 25 tickets. what is the common difference in the number of tickets sold each day?
a. 30
b. 20
c. 25
d. 15

Explanation:

Step1: Understand common difference

In an arithmetic sequence, the common difference is the fixed amount by which each term increases (or decreases) from the previous term.

Step2: Analyze the problem

The problem states that each subsequent day, the number of tickets sold increases by 25 tickets. This increase of 25 tickets per day is the common difference in the arithmetic sequence representing the number of tickets sold each day.

Answer:

c. 25